||THE HYPERCARD CENTER
Note: This is a work in progress and will be formatting errors. Read more about the project on the home page.
HyperCard sends the
deleteBackground message to the card that is being deleted if no other cards in the stack share its background. HyperCard sends the message just before the card disappears.
Note: You cannot stop a background from being deleted by trapping the
deleteBackground message. Instead, you must handle the
doMenu message or set the
cantDelete property for the background.
Any return-separated list of built-in commands, user-defined handlers, or keywords that are part of a message or function handler.
put "Hello world" -- built-in command
get total(field 1) -- function call
global HelpInfo -- keyword
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| deleteButton »
(March 24, 2022)
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